Hi, I bought a electric lab furnace on ebay to do some casting. It's about the size of a coffee maker and will heat to 1000 degrees C. The inside of the...
37934
Jeshua Lacock
jeshua_lacock
Nov 4, 2007 11:56 am
... No - it will eat away the refractory. ... You will want to make sure the chemistry (PH) of what you are melting is compatible with your crucible. ... It...
37935
hfleet77
ncharley4
Nov 4, 2007 3:09 pm
PLEASE DO NOT TRY TO MELT ANY METAL. Until you have done alot more reading. And Please dont melt any in your house or garage. moltin metal is something that is...
37936
Jeshua Lacock
jeshua_lacock
Nov 4, 2007 3:40 pm
... Why you telling people not to melt metal on a _metal_casting_group? We all have to start somewhere, and at least Dave is asking questions about things he...
37937
Dennis Cranston
dennisintexas41
Nov 4, 2007 3:53 pm
I use a Kerr 'coffee pot' type of furnace to melt aluminum quite successfully. In my initial melts, I hauled stuff outside, but as I become accustom to the...
37938
daveyx2003
Nov 4, 2007 4:09 pm
Thanks for the replies. I learned oxy-acetylene welding at a local college several years ago. I'm currently studying jewellery making with a professional...
37939
Jeshua Lacock
jeshua_lacock
Nov 4, 2007 4:40 pm
... Welcome to the group Dave. I don't doubt your competence. Good luck and don't hesitate to ask questions - this group has been dead for a while. Not sure if...
37940
rgsparber@...
rgsparber
Nov 4, 2007 4:43 pm
In a message dated 11/4/2007 8:41:07 A.M. US Mountain Standard Time, jeshua@... writes: Why you telling people not to melt metal on a...
37941
rgsparber@...
rgsparber
Nov 4, 2007 4:45 pm
In a message dated 11/4/2007 9:41:16 A.M. US Mountain Standard Time, jeshua@... writes: Not sure if you are aware of this, but one common beginners...
37942
Jeshua Lacock
jeshua_lacock
Nov 4, 2007 4:53 pm
... Who me? I have been casting since I was 12 - over 20 years now! ... That sounds like not only was there too much moisture, but not a proper mix of green...
37943
rgsparber@...
rgsparber
Nov 4, 2007 5:03 pm
In a message dated 11/4/2007 9:53:24 A.M. US Mountain Standard Time, jeshua@... writes: I would think that offering meaningful advise will be more...
37944
Jeshua Lacock
jeshua_lacock
Nov 4, 2007 5:39 pm
... Good advice. ... I think you have me confused with David? ... Also a good point. Cheers, Jeshua Lacock, Owner <http://OpenOSX.com> phone: 877.240.1364...
37945
MAGGIE ALLEN
yvanwolvesbane
Nov 4, 2007 7:25 pm
Hey there, Dave- Welcome aboard! Don't mind the calls for caution from various corners of the group, they just wanted to be sure you don't accidentally hurt...
37946
Dan Brewer
danqualman
Nov 4, 2007 7:34 pm
The clay liner is to keep different metals form cross contaminating each other. So if you melt gold you don't want silver contaminating your gold. You can buy...
37947
daveyx2003
Nov 5, 2007 4:04 am
... corners of the group, they just wanted to be sure you don't accidentally hurt (or worse) yourself and/or loved ones as you climb the learning curve. ...
37948
hfleet77
ncharley4
Nov 6, 2007 2:14 am
hello to all: I must say that I was probably a bit too fast on the draw to warn Davie about the dangers of the melt. I allways try to gather as much...
37949
rgsparber@...
rgsparber
Nov 6, 2007 2:58 am
In a few days I will start up me new Hartman Furnace. One thing still unresolved is how to protect the soft fire brick which holds the electric heating ...
37950
David Patterson
odd_kins
Nov 6, 2007 3:14 am
Never feel bad about being too harsh, which it wasn't. I've used far more colorful language when someone starts talking to me while using any equipment that...
37951
Elizabeth Ruppert
ruppert3
Nov 6, 2007 4:05 am
Online store that sell lead free casting metals. I have recently bought a Lee brand Magnum Melter: http://www.leeprecision.com/html/catalog/melters.html...
37952
Kirk
kirkbecnel
Nov 6, 2007 4:12 am
Try http://www.neymetals.com/ They have always been nice and helpful to me. The salesman even worked with me to get me the right alloy for my application. ... ...
37953
Rupert
rwenig1
Nov 6, 2007 4:19 am
Hello Rick, Congrats on the new furnace. Let us know how well it works for you. My thoughts are to be careful doing this. I suggest to be sure the shield is...
37954
rgsparber@...
rgsparber
Nov 6, 2007 4:25 am
Rupert, I'm still collecting ideas but making a crane that will lift straight up is more appealing than any kind of liner. I could go with a smaller crucible...
37955
Rupert
rwenig1
Nov 6, 2007 4:35 am
Hello Rick, Using a crane to left the crucible sure should reduce any chances of bumping the sides of the furnace. How large is your furnace and crucible? Have...
37956
rgsparber@...
rgsparber
Nov 6, 2007 4:43 am
In a message dated 11/5/2007 9:36:12 P.M. US Mountain Standard Time, rwenig2@... writes Using a crane to lift the crucible sure should reduce any...
37957
dean_aggett
Nov 6, 2007 10:06 am
I have an gas fired alcosa it is set up for town gas and I nead to change to propaine any advice,I beleave I have to reduce the jet size is this all I have to...
37958
Chris Bailey
cbailey73160
Nov 6, 2007 11:56 am
Talk to your local propane supply company. They can help you re-jet the burner orifice and make sure it's the right size for your application. They can also...
37959
Rupert
rwenig1
Nov 6, 2007 1:34 pm
... Hello Rick, I found the MSDS <http://catalog2.corning.com/Lifesciences/en-US/TDL/techInfo_abstract.aspx?productid=007740> for Pyrex. Pyrex starts to soften...
37960
rgsparber@...
rgsparber
Nov 6, 2007 1:39 pm
In a message dated 11/6/2007 6:34:30 A.M. US Mountain Standard Time, rwenig2@... writes: Pyrex starts to soften at about 700C (1292 F) according to ...
37961
Rupert
rwenig1
Nov 6, 2007 1:44 pm
Hello Rick, I didn't say Pyrex melts at 700C. The MSDS says it starts to soften at 700C. I found one article ...
37962
rgsparber@...
rgsparber
Nov 6, 2007 1:57 pm
In a message dated 11/6/2007 6:50:17 A.M. US Mountain Standard Time, rwenig2@... writes: I didn't say Pyrex melts at 700C. ... Rupert, Sorry for the...
